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| The Pre-processing Method Based on Signal Conjugate Cyclostationary |
| Chen Hui; Wang Yong-liang; Pi Xing-yu |
| Key Research Lab Radar Academy Wuhan 430010 China |
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Abstract This paper researches the relation of conjugate cyclostationary methods, and proposes a kind of pre-processing method of conjugate cyclic correlation. These methods make use of the information of the matrix of conjugate cyclic correlation is Hankel matrix. Therefore, pre-processing of Hankel Approximation Method (HAM) is proposed to cope with the low signal-noise ratio (SNR) situations. These methods can improve the performance of Direction-Of-Arrival (DOA), and its effectiveness are illustrated by the simulation results.
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Received: 09 July 2002
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2004, Vol. 26 
